Paper winding machine



Oct. 12, 1937. J. F. ALBRIGHT 4 PAPER WINDING MACHINE Filed Dec. 7, 1954 zg 27 Jag@ WwfQ/L@ Patented Oct. 12, 1937 UNITED sTATEs PATENT oEFicE i 2,095,516 PAPER WINDTNG MACHINE Jacob F. Albright, Bastrop, La. Application December 7, 1934, serial No. 755,528 11 claims. (ci. 3287-52) l The present invention relates to paper winding mechanism such as is used for winding paper made on a paper making machine.

More particularly the invention relates to a detachable collar means adapted to be readily applied tothe shaft of a paper winding machine and clamped thereon to hold the paper sheet being wound against lateral slippage, and to this end the invention aims generally to improve existing devices.

In order that the invention may be better understood, reference is made to the accompanying drawing and following detailed description of one embodiment of the invention which has proved to be highly successful in practice.

In the drawing- Fig. `1 is a side elevation of the improved collar applied to a shaft of a paper winding machine;

Fig. 2 is a horizontal sectional view taken on the line 2--2 ofFig. 1; i i

Fig. 3 isY a vertical sectional view taken on the line 3 3 of Fig. 2; 'i

Fig. 4 is a view similarto Fig. 3 illustrating the position ofthe parts as the collar is ready to be y taken on the which is bifurcated to provide an open throat II ofsufiicent width to enable the housing to be slipped over the shaft I2 of a paper winding machine. The housing I preferably comprises spaced side frames I3 and I3a and a central semihub portion I4 communicating with the throat II and in which a portion of the shaft I2 is positioned. when the collar is in its operative position on..the shaft. The housing I0 is advantageously recessed to receive a peripheral cover plate I5 which may be secured in place by any suitable means, as for example, screws II,` and one side of said housing may be recessed to receive a closure plate I1 held in place by screws I8. f

.The hub portion I4. issuitably constructed to receive toothed blocks or dogs I 9, and preferably the hub portion I4 is formed with a dovetail groove and the blocks I9 are similarly shaped so that the latter may be inserted from the side and held firmly in fixed position. The blocks or dogs I9, are formed with teeth 2I obliquely cut on the face of the block so that upon relative rotation between the shaft I2 and the block I9 the block and housing will be moved toward and in tight engagement with the end of the roll. The teeth 'of both upper and lower blocks I9 engage the surface of the shaft I2 on the same side of the vertical axes of the shaft as illustrated in Fig. l. 5.

Additional gripping means for clamping the housing IG on the shaft and preventing accidental removing therefrom are provided, and preferably comprise a pair of movable blocks or dogs 22 engageab-le with the shaft on the opposite side l0 of its vertical axis from the blocks I9, so that when the collar is in its operative position on the shaft, the shaft is embraced by a plurality of toothedblocks engaging its surface in opposite sides of any diametrical axis, the spacing between l15 any two blocks being of less distancethan the diameter of the shaft. To this end the housing Iii is formed with inclined guideways 23 to receive movable dogs 22 having teeth 24 cut in angularly disposed faces thereof. .2'0

Means are provided for exerting a'resilient ten sion upon the dogs 22 to normally force and hold them in engagement with the shaft I2, and pref erably the means is such that a uniform tension'V is exerted upon opposed dogs 22. As herein disi closed a pair of leaf springs 25 may be fxedly mounted in the housing Iii in any conventional manner, said springs having their free ends eX- tending forwardly and engaging in seats 26 in the locking dogs 22 so as normally to exert a tension .to move the dogs inwardly into engagement with the shaft. Y

Each of the dogs or pawls 22 is provided with a recess or seat 2l to receive the end of a locking bar or bolt 28 slidably mounted in the housing and reciprocable toward and from the seat 2'I. The locking baror bolt is formed intermediate its ends with a recess or seat such as at 23a to receive a trigger 29, one end of which is journalled in a recess as at 36in the housing IU, and the other end is free to be moved into and out of the throat II. Advantageously there are two triggers 29 provided which may be'under the tension of. a suitable spring 29a. When the dogs or pawls 22 are in inoperative position, and are retracted in the guideways 23, the locking bar or bolt 28 engages the seat 21 of its dog 22 and holds the dog in inoperative position. In this position the free end of each trigger 29 is positioned within the throat as shown in Fig. 4. The collar is thus ready to be applied to the shaft.

As the collar is applied to the shaft of the machine the throat portion is slipped over the shaft and as it is moved intoy proper position, the shaft engages the free ends of the triggers 29 swinging them rearwardly out of engagement With the seat 21, permitting the dogs 22 to be moved in- Wardly into engagement With and embracing the shaft l2.

The housing sides may be formed'with slots 3| and the dogs 22 with sockets 32 for the reception of pins or the like of any suitable tool whereby the dogs may be retracted in their guideways 23 when it is desired to remove the collar from the shaft.

The principal advantages Vof my invention reside in the provision of a collar for the purpose described that may be readily applied to and snapped upon a shaft While in motion so as not to require stopping the machine and dismantling of the shaft bearing in order to apply the collar. Furthermore the use of slidable or reciprocable dogs or pawls under tension of the powerful spring means quickly and safely locks the collar to the shaft. The provision of the trigger and locking bar mechanism permits mounting the collar in a condition ready to be applied to a shaft, and instantly upon being applied to the shaft releases the looking dogs or pawls so that danger of the collar being thrown from the revolving shaft is avoided. Y

Having described one preferred embodiment of the invention, I claim:

1. A snap-,on collar forA Winder shafts comprising a unitary U-shaped housing having an open throat of-a Width slightly in excess of the diameter of theV Winder shaft and ofra length that the ends of the throat extend beyond the surface of the shaft as a whole, by means of which the collar may be placed on the shaft While the latter is in motion, and means for automatically locking the collar upon the rotating shaft as the collar is placed upon the shaft.

2. A snap-on collar for Winder shafts comprising a U-shaped housing having an open throat adapted to be positioned around a rotating shaft, locking means normally' positioned Within the housing, and means for releasing said locking means into locking engagement with said shaft.

3. A snap-on collar for Winder shafts comprising a 'U-shaped housing having an open throat adapted to be positioned around a Yrotating shaft, locking means normally positioned Within the housing, and means automatically operated upon placing the collar'coaxial of said shaft for releasing said locking means into locking engagement with said shaft.

4. VA snap-on collar for Winder shafts compris-` ing a UY-shaped' housing having an open throat adaptedto be positioned around a rotating shaft, a plurality of looking pawls normally positioned Within said housing, and means for releasing said pawls from said housing.

5; A snap-on collar for Winder shafts comprising a U-shaped housing having an open throat adapted to be positioned'around a rotating shaft, a plurality of locking pawls normally positioned Within Said housing, Ymeans for releasing said pawls from said housing, and spring means for Y holding said pawls in tight engagement with said shaft. Y

6. A snap-on collar for Winder shafts comprising a U-Shaped housing having an open throat adapted to be positioned around a rotating shaft, locking members normally positioned within said housing, spring means in engagement with said locking members, latch means for holding said locking members Within said housing under tension of said spring means, and means for releasing said latch means.

7. A snap-on'collar for Winder shafts comprising a U-shaped housing having an open throat adapted to be positioned around a rotating shaft, locking members normally positioned Within said housing, spring means in engagement with said locking members, latch means for holding said locking members Within said housing under ten- Y part normally-'lying in said throat for releasing said latch means as the collar is applied to said shaft.

8. A snap-on collar for 'Winder shafts comprising a U-shaped housing having an open throat adapted to be positioned around a rotating shaft, locking members normally positioned within said housing, spring means in engagement With said locking members, latch means for holding said locking members'within said housing under tension ofV said spring means, and trigger means having a part normally lying in'said throat for releasing said latch means as the collar is applied to said shaft.

9. A snap-on collar for Winder shafts comprising a U-shaped Vhousing having an open throat adapted to be positioned around a rotating shaft, locking members normally positioned within said housing, spring means in engagement With said looking members, latch means forY holding said locking members Within said housing under tension of said spring means, and lever means fulcrumed to said housing and having a part normally lying in said throat for releasing said latch means as the collar is applied to said shaft.

'10. n combination with a rotating shaft of a Winder machine, a collar adapted to be mounted on said shaft comprising a housing having an open throat at one side thereof whereby said collar may be applied to Vsaid shaft while in motion, a pair ofV fixed dogs mounted in said housing for engagement with said shaft on one siderof the vertical axis thereof, and a plurality of movable dogs adapted for engagement with an opposite side of said shaft.

1l. In combination with a rotating shaft of a Winder machine, acollar adapted to be mounted on said shaft comprising a housing having an open throat at one 'side thereof whereby said collar may be applied to said shaft While in motion, a pair of fixed dogs mounted in said housing for engagement With'said shaft on one side of the vertical axis thereof, and a plurality of movable dogs adapted for engagement With an opposite side of said shaft, said4 movable dogs being retroactable into said housing to permit said collar to be applied to and removed from said shaft While in Vmotion.

. JACOB F. ALBRIGHT. 

